CN109320110A - It is a kind of using sulphur tailing as sulphoaluminate cement clinker of raw material and preparation method thereof - Google Patents
It is a kind of using sulphur tailing as sulphoaluminate cement clinker of raw material and preparation method thereof Download PDFInfo
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- CN109320110A CN109320110A CN201811243645.2A CN201811243645A CN109320110A CN 109320110 A CN109320110 A CN 109320110A CN 201811243645 A CN201811243645 A CN 201811243645A CN 109320110 A CN109320110 A CN 109320110A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/32—Aluminous cements
- C04B7/323—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Ceramic Engineering (AREA)
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- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention provide it is a kind of using sulphur tailing as sulphoaluminate cement clinker of raw material and preparation method thereof, according to parts by weight, including following component: sulphur tailing, 5~20 parts；Aluminium ash, 20~40 parts；Carbide slag, 40~50 parts；Titanium gypsum, 5~20 parts.The present invention replaces the sulphur matter and ferriferous raw material of conventional sulphoaluminate cement clinker production using sulphur tailing completely, part replaces calcareous, aluminum, siliceous raw material, after grinding to certain fineness, the formation that clinker Minerals are controlled by basicity factor Cm and sulphur aluminium ratio P prepares sulphoaluminate cement clinker with ingredients such as aluminium ash, carbide slag, titanium gypsums.The sulphoaluminate cement clinker that the present invention prepares is cooperated using sulphur tailing and titanium gypsum, and by creative test, show that the 3d compression strength of sulphoaluminate cement clinker prepared by the present invention is up to 46MPa, 7d compression strength and is up to 55MPa, 28d compression strength and be up to 60MPa.
Description
Technical field
The present invention relates to the field of building materials, and in particular to it is a kind of using sulphur tailing as the sulphoaluminate cement clinker of raw material and
Preparation method.
Background technique
Nonferrous metals ore can generate the tailing rich in sulphur in recovery process, and the sulfidic material in these sulfur-bearing tailings is in length
Under the rainwater and slacking of phase, acid waste water etc. can be generated with destructive pollutant, these pollutants can penetrate into ground
Under, in water, in air, can not only destroy the balance of ecological environment, cause environmental pollution, neighbouring people's health can also be formed
It threatens.The nonferrous metals ore yield in China is huge, and for the sulfur-bearing tailing of generation with being continuously increased, the bulk deposition of tailing is unrestrained
A large amount of land resource is taken, and utilization rate is very low.Therefore, the comprehensive utilization of sulphur tailing is China's non-ferrous metal mining industry
Urgent problem to be solved.
Sulphoaluminate cement clinker is with calcium sulphoaluminateDicalcium silicate (C2) and tetra calcium aluminoferrite (C S4AF)
For the clinker of essential mineral, calcareous, siliceous, aluminum, sulphur matter and ferriferous raw material are needed in preparation process, and can use
Industrial Solid Waste substitutes part material, such as sulphur tailing, and the main chemical compositions of sulphur tailing are SO3、SiO2、Fe2O3、CaO、
Al2O3And the microelements such as a small amount of Zn, Mn, Ti, wherein SO3、SiO2、Fe2O3, CaO content higher can partially substitute original
Sulphur matter, siliceous, irony and calcareous raw material in material, the Ti in the microelements and titanium gypsum such as Zn, Mn can reduce the burning of clinker
At temperature, promote the generation of clinker Minerals, Partial Elements can enter the lattice of mineral, due to the element radius and original of entrance
The radius for carrying out lattice elements is different, will lead to lattice parameter and changes, and generates distortion of lattice, the activity of mineral can be improved,
The property of clinker is set to change.Sulphate aluminium cement is produced using sulphur tailing and not only reduces production cost, and comprehensive
Industrial Solid Waste is utilized, there is significant environmental protection and application value.
By the research of many researchers, China achieves certain progress in terms of preparing sulphoaluminate cement clinker.
Application No. is CN201210022401.8 patents of invention to provide a kind of preparation side of active belite-sulphate aluminum cement clinker for active belite-sulphate aluminum cement clinker
Method, this method are cooling after 1300~1380 DEG C of 30~60min of calcining using lime stone, waste residue containing aluminum i ndustry and gypsum as raw material
Active belite-sulphate aluminum cement clinker for active belite-sulphate aluminum cement clinker is made, contains α '-C in clinker made from this method2S, α '-C2Although S is than β-C2S
With higher hydraulically active, but its extent of reaction depends on the type of resistate used, leads to β-C2The reactivity of S is big
In α '-C2S's, and α '-C2The intensity of S is higher, increases grinding difficulty, and the addition of stabilizer equally also increases production cost；Shen
Number a kind of side that sulphoaluminate cement clinker is prepared using flying ash please be provided for CN201210425922.8 patent of invention
Method, this method is with flying ash, bauxite, CaCO3、CaSO4Equal chemical reagent are raw material, basicity factor 1.0, at 1350 DEG C
At a temperature of be made sulphoaluminate cement clinker, this method basicity factor is higher, and SO3Content is not enough to be formedMineral,
Transitionality mineral easy to form, influence clinker quality.
Above method be all sulphoaluminate cement clinker is prepared using industrial solid castoff, but using sulphur tailing come
The method of sulphoaluminate cement clinker is prepared almost without people's exploration, at present also in blank research field.
Summary of the invention
The present invention is to utilize sulphur using solid waste sulphur tailing as sulphoaluminate cement clinker of raw material and preparation method thereof
Tailing replaces the sulphur matter and ferriferous raw material of conventional sulphoaluminate cement clinker production completely, partially replaces calcareous, aluminum, siliceous
Raw material after grinding to certain fineness, is controlled in clinker by basicity factor Cm and sulphur aluminium ratio PC2S and C4AF
The formation of mineral prepares sulphoaluminate cement clinker with ingredients such as aluminium ash, carbide slag, titanium gypsums.
To achieve the goals above, the invention provides the following technical scheme:
It is a kind of using sulphur tailing as the sulphoaluminate cement clinker of raw material, according to parts by weight, the sulphate aluminium cement is ripe
Expect to include following component: sulphur tailing, 5~20 parts；Aluminium ash, 20~40 parts；Carbide slag, 40~50 parts；Titanium gypsum, 5~20 parts.
Sulphoaluminate cement clinker as described above, it is preferable that according to parts by weight, the sulphoaluminate cement clinker includes
Following component: sulphur tailing, 7~18 parts；Aluminium ash, 25~36 parts；Carbide slag, 40~50 parts；Titanium gypsum, 7~18 parts.
Sulphoaluminate cement clinker as described above, it is preferable that the weight of the raw material composition of the sulphoaluminate cement clinker
Number will guarantee that basicity factor Cm range is 0.94~0.97；Aluminium-sulfur ratio P range is 1~3.5.
Sulphoaluminate cement clinker as described above, it is preferable that by weight percentage, the sulphur tailing includes such as the following group
Part: SO3, 30%~40%；SiO2, 20%~30%；Fe2O3, 15%~25%；CaO, 10%~20%；Al2O3, 1%~
10%；Surplus is inevitable impurity.
Sulphoaluminate cement clinker as described above, it is preferable that by weight percentage, the aluminium ash includes following component:
Al2O3, 67%~80%；SiO2, 7%~15%；CaO, 5%~20%；Surplus is inevitable impurity.
Sulphoaluminate cement clinker as described above, it is preferable that by weight percentage, the carbide slag includes such as the following group
Part: CaO, 75%~90%；SiO2, 3%~10%；Al2O3, 3%~10%；SO3, 1%~7%；Surplus is inevitable
Impurity.
Sulphoaluminate cement clinker as described above, it is preferable that by weight percentage, the titanium gypsum includes such as the following group
Part: SO3, 40%~55%；CaO, 25%~40%；Fe2O3, 5%~20%；Al2O3, 1%~10%；TiO2, 1%~5%；
Surplus is inevitable impurity.
Sulphoaluminate cement clinker as described above, it is preferable that the sulphoaluminate cement clinker is in addition and clinker quality ratio
For 0.07~0.20 dihydrate gypsum it is levigate after, specific surface area range be 360m2/ Kg~440m2/Kg。
It is a kind of as described above using sulphur tailing as the preparation method of the sulphoaluminate cement clinker of raw material, the preparation method
Include the following steps:
1) by sulphur tailing, aluminium ash, carbide slag, titanium gypsum separate compiling to 200 mesh hereinafter, spare；
2) each material component is weighed according to raw material proportioning, be mixed evenly, be pressed into mixture using tablet press machine
Test cake, it is spare after dry 10~12h under the conditions of 100~105 DEG C；
3) test cake prepared in step 2) is put into high temperature furnace, is warming up to 1260 DEG C~1300 DEG C, heat preservation 40~
55min is chilled to room temperature to get sulphur tailing sulphoaluminate cement clinker.
Compared with the immediate prior art, technical solution provided by the invention is had the following beneficial effects:
1) the invention proposes a kind of new ways of sulphur Tailings utilization, using solid waste as raw material, do not need to add
Add any additive, production cost is low, less energy consumption, market and has a extensive future.
2) preparation method of the invention is simple, easy to operate, is able to achieve industrialized production.
3) present invention replaces the sulphur matter and ferriferous raw material of conventional sulphoaluminate cement clinker production using sulphur tailing completely,
Part replaces calcareous, aluminum, siliceous raw material, after grinding to certain fineness, controls cement by basicity factor Cm and sulphur aluminium ratio P
In clinkerC2S and C4It is ripe to prepare sulphate aluminium cement with ingredients such as aluminium ash, carbide slag, titanium gypsums for the formation of AF mineral
Material.The sulphoaluminate cement clinker that the present invention prepares is cooperated using sulphur tailing and titanium gypsum, and by creativeness
Test, show that the 3d compression strength of sulphoaluminate cement clinker prepared by the present invention is up to 46MPa, 7d compression strength and is up to
55MPa, 28d compression strength are up to 60MPa.
Detailed description of the invention
Fig. 1 is the compression strength of sulphur tailing sulphoaluminate cement clinker different larval instar prepared by the specific embodiment of the invention 1
Tendency chart；
Fig. 2 is the compression strength of sulphur tailing sulphoaluminate cement clinker different larval instar prepared by the specific embodiment of the invention 2
Tendency chart；
Fig. 3 is the compression strength of sulphur tailing sulphoaluminate cement clinker different larval instar prepared by the specific embodiment of the invention 3
Tendency chart；
Fig. 4 is the compression strength of sulphur tailing sulphoaluminate cement clinker different larval instar prepared by the specific embodiment of the invention 4
Tendency chart；
Fig. 5 is the compression strength of sulphur tailing sulphoaluminate cement clinker different larval instar prepared by the specific embodiment of the invention 5
Tendency chart；
Fig. 6 is the compression strength tendency chart of sulphur tailing sulphoaluminate cement clinker different larval instar prepared by comparative example 1；
Fig. 7 is the compression strength tendency chart of sulphur tailing sulphoaluminate cement clinker different larval instar prepared by comparative example 2；
Fig. 8 is the compression strength tendency chart of sulphur tailing sulphoaluminate cement clinker different larval instar prepared by comparative example 3.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff's every other embodiment obtained, shall fall within the protection scope of the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.It should be noted that in the feelings not conflicted
Under condition, the feature in embodiment and embodiment in the present invention be can be combined with each other.
The present invention provides a kind of using sulphur tailing as the sulphoaluminate cement clinker of raw material, according to parts by weight, aluminium sulfate
Clinker includes following component: sulphur tailing, 5~20 parts (such as 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts,
14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts)；Aluminium ash, 20~40 parts (such as 21 parts, 22 parts, 23 parts, 24 parts, 25
Part, 26 parts, 27 parts, 28 parts, 29 parts, 30 parts, 31 parts, 32 parts, 33 parts, 34 parts, 35 parts, 36 parts, 37 parts, 38 parts, 39 parts, 40
Part)；Carbide slag, 40~50 parts (such as 40 parts, 41 parts, 42 parts, 43 parts, 44 parts, 45 parts, 46 parts, 47 parts, 48 parts, 49 parts, 50
Part)；Titanium gypsum, 5~20 parts (such as 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17
Part, 18 parts, 19 parts, 20 parts).
In a specific embodiment of the present invention, according to parts by weight, sulphoaluminate cement clinker includes following component: sulphur tail
Mine, 7~18 parts (such as 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts, 10 parts, 10.5 parts, 11 parts, 11.5 parts, 12 parts,
12.5 parts, 13 parts, 13.5 parts, 14 parts, 14.5 parts, 15 parts, 15.5 parts, 16 parts, 16.5 parts, 17 parts, 17.5 parts, 18 parts)；Aluminium
Ash, 25~36 parts (such as 25 parts, 25.5 parts, 26 parts, 26.5 parts, 27 parts, 27.5 parts, 28 parts, 28.5 parts, 29 parts, 29.5 parts,
30 parts, 30.5 parts, 31 parts, 31.5 parts, 32 parts, 32.5 parts, 33 parts, 33.5 parts, 34 parts, 34.5 parts, 35 parts, 35.5 parts, 36
Part)；Carbide slag, 40~50 parts (such as 40.5 parts, 41 parts, 41.5 parts, 42 parts, 42.5 parts, 43 parts, 43.5 parts, 44 parts, 44.5
Part, 45 parts, 45.5 parts, 46 parts, 46.5 parts, 47 parts, 47.5 parts, 48 parts, 48.5 parts, 49 parts, 49.5 parts, 50 parts)；Titanium gypsum, 7
~18 parts (such as 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts, 10 parts, 10.5 parts, 11 parts, 11.5 parts, 12 parts, 12.5 parts, 13
Part, 13.5 parts, 14 parts, 14.5 parts, 15 parts, 15.5 parts, 16 parts, 16.5 parts, 17 parts, 17.5 parts).
In a specific embodiment of the present invention, the parts by weight of the raw material composition of sulphoaluminate cement clinker will guarantee basicity
Coefficient Cm range be 0.94~0.97 (such as 0.94,0.942,0.945,0.948,0.95,0.952,0.955,0.958,
0.96,0.962,0.965,0.968,0.97)；Aluminium-sulfur ratio P range be 1~3.5 (such as 1,1.2,1.4,1.5,1.6,1.8,2,
2.2、2.4、2.5、2.6、2.8、3、3.2、3.4、3.5)。
In a specific embodiment of the present invention, by weight percentage, sulphur tailing includes following component: SO3, 30%~
40% (such as 31%, 31.5%, 32%, 32.5%, 33%, 34.5%, 35%, 35.5%, 36%, 36.5%, 37%,
37.5%, 38%, 38.5%, 39%, 39.5%, 40%)；SiO2, 20%~30% (such as 21%, 21.5%, 22%,
22.5%, 23%, 24.5%, 25%, 25.5%, 26%, 26.5%, 27%, 27.5%, 28%, 28.5%, 29%,
29.5%, 30%)；Fe2O3, 15%~25% (such as 16%, 16.5%, 17%, 17.5%, 18%, 18.5%, 19%,
19.5%, 20%, 21.5%, 22%, 22.5%, 23%, 23.5%, 24%, 24.5%)；CaO, 10%~20% (such as
11%, 11.5%, 12%, 12.5%, 13%, 14.5%, 15%, 15.5%, 16%, 16.5%, 17%, 17.5%, 18%,
18.5%, 19%, 19.5%, 20%)；Al2O3, 1%~10% (such as 1%, 1.5%, 2%, 2.5%, 3%, 4.5%,
5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%)；Surplus is inevitable impurity.
In a specific embodiment of the present invention, by weight percentage, aluminium ash includes following component: Al2O3, 67%~
80% (such as 68%, 69%, 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%)；
SiO2, 7%~15% (such as 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%, 10.5%, 11%, 12.5%,
13%, 13.5%, 14%, 14.5%, 15%)；CaO, 5%~20% (such as 6%, 7%, 8%, 9%, 10%, 11%,
12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%)；Surplus is inevitable impurity.
In a specific embodiment of the present invention, by weight percentage, carbide slag includes following component: CaO, 75%~
90% (such as 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%,
89%, 90%)；SiO2, 3%~10% (such as 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%,
7.5%, 8%, 8.5%, 9%, 9.5%, 10%)；Al2O3, 3%~10% (such as 3%, 3.5%, 4%, 4.5%, 5%,
5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5%, 10%)；SO3, 1%~7% (such as 1.5%,
2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%)；Surplus is inevitable impurity.
In a specific embodiment of the present invention, by weight percentage, titanium gypsum includes following component: SO3, 40%~
55% (such as 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49%, 50%, 51%, 52%, 53%,
54%, 55%)；CaO, 25%~40% (such as 26%, 27%, 28%, 29%, 30%, 31%, 32%, 33%, 34%,
35%, 36%, 37%, 38%, 39%, 40%)；Fe2O3, 5%~20% (such as 6%, 7%, 8%, 9%, 10%, 11%,
12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%)；Al2O3, 1%~10% (such as 1%, 1.5%,
2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%,
9.5%)；TiO2, 1%~5% (such as 1.2%, 1.4%, 1.5%, 1.6%, 1.8%, 2%, 2.2%, 2.4%, 2.5%,
2.6%, 2.8%, 3%, 3.2%, 3.4%, 3.5%, 3.6%, 3.8%, 4%, 4.2%, 4.4%, 4.5%, 4.6%,
4.8%)；Surplus is inevitable impurity.
In a specific embodiment of the present invention, the sulphoaluminate cement clinker addition with clinker quality ratio be 0.07~
0.20 (such as 0.08,0.09,0.10,0.11,0.12,0.13,0.14,0.15,0.16,0.17,0.18,0.19,0.20) two
After water gypsum is levigate, specific surface area range is 360m2/ Kg~440m2/ Kg (such as 365m2/Kg、370m2/Kg、375m2/Kg、
380m2/Kg、385m2/Kg、390m2/Kg、395m2/Kg、380m2/Kg、390m2/Kg、400m2/Kg、410m2/Kg、420m2/
Kg、430m2/Kg、440m2/Kg)。
It is a kind of as described above using sulphur tailing as the preparation method of the sulphoaluminate cement clinker of raw material, the preparation method
Include the following steps:
1) by sulphur tailing, aluminium ash, carbide slag, titanium gypsum separate compiling to 200 mesh hereinafter, spare；
2) each material component is weighed according to raw material proportioning, be mixed evenly, be pressed into mixture using tablet press machine
Test cake, 100~105 DEG C (such as 101 DEG C, 101.5 DEG C, 102 DEG C, 102.5 DEG C, 103 DEG C, 103.5 DEG C, 104 DEG C, 104.5 DEG C,
105 DEG C) under the conditions of dry 10~12h (such as 10.2h, 10.4h, 10.5h, 10.6h, 10.8h, 11h, 11.2h, 11.4h,
11.5h, 11.6h, 11.8h) it is spare afterwards；
3) test cake prepared in step 2) is put into high temperature furnace, be warming up to 1260 DEG C~1300 DEG C (such as 1265 DEG C,
1268℃、1270℃、1272℃、1275℃、1278℃、1280℃、1282℃、1285℃、1288℃、1290℃、1292℃、
1295 DEG C, 1298 DEG C, 1230 DEG C), heat preservation 40~55min (such as 41min, 42min, 43min, 44min, 45min, 46min,
47min, 48min, 49min, 50min, 51min, 52min, 53min, 54min), room temperature is chilled to get sulphur tailing sulphur aluminic acid
Salt cement clinker.
Embodiment 1
Sulphur tailing sulphoaluminate cement clinker each raw material component weight fraction ratio provided in this embodiment are as follows: sulphur tailing
16.39 parts, aluminium grey 25.57 parts, 41.64 parts of carbide slag, 16.40 parts of titanium gypsum, basicity factor Cm is 0.97, and aluminium-sulfur ratio P is
1.22。
1) by sulphur tailing, aluminium ash, carbide slag, titanium gypsum separate compiling to 200 mesh hereinafter, spare；
2) each material component is weighed according to raw material proportioning, be mixed evenly, be pressed into mixture using tablet press machine
Test cake, it is spare after dry 10h under the conditions of 105 DEG C；
3) test cake prepared in step 2) is put into high temperature furnace, is warming up to 1260 DEG C, kept the temperature 40min, be chilled to room
Temperature is to get sulphur tailing sulphoaluminate cement clinker.Added in clinker 11.5% dihydrate gypsum it is levigate after specific surface area be
371m2/ Kg, at the same the ratio of mud be 0.4 under conditions of form, and standard curing room (temperature be 20 DEG C, relative humidity >=
90%) its mechanical property is tested after maintenance to certain age in.It is as shown in Figure 1 the trend of product compression strength achieved
Figure.
Sulphate aluminium cement of the available properties of product prepared better than 42.5 labels in the market.
Embodiment 2
Sulphur tailing sulphoaluminate cement clinker each raw material component weight fraction ratio provided in this embodiment are as follows: sulphur tailing
15.19 parts, aluminium grey 27.85 parts, 44.30 parts of carbide slag, 12.66 parts of titanium gypsum, basicity factor Cm is 0.95, and aluminium-sulfur ratio P is
1.60。
1) by sulphur tailing, aluminium ash, carbide slag, titanium gypsum separate compiling to 200 mesh hereinafter, spare；
2) each material component is weighed according to raw material proportioning, be mixed evenly, be pressed into mixture using tablet press machine
Test cake, it is spare after dry 11.5h under the conditions of 105 DEG C；
3) test cake prepared in step 2) is put into high temperature furnace, is warming up to 1280 DEG C, kept the temperature 45min, be chilled to room
Temperature is to get sulphur tailing sulphoaluminate cement clinker.Added in clinker 12.6% dihydrate gypsum it is levigate after specific surface area be
375m2/ Kg, at the same the ratio of mud be 0.4 under conditions of form, and standard curing room (temperature be 20 DEG C, relative humidity >=
90%) its mechanical property is tested after maintenance to certain age in.It is illustrated in figure 2 the trend of product compression strength achieved
Figure.
Sulphate aluminium cement of the available properties of product prepared better than 42.5 labels in the market.
Embodiment 3
Sulphur tailing sulphoaluminate cement clinker each raw material component weight fraction ratio provided in this embodiment are as follows: sulphur tailing
12.35 parts, aluminium grey 30.12 parts, 45.18 parts of carbide slag, 12.35 parts of titanium gypsum, basicity factor Cm is 0.96, and aluminium-sulfur ratio P is
1.90。
1) by sulphur tailing, aluminium ash, carbide slag, titanium gypsum separate compiling to 200 mesh hereinafter, spare；
2) each material component is weighed according to raw material proportioning, be mixed evenly, be pressed into mixture using tablet press machine
Test cake, it is spare after dry 12h under the conditions of 105 DEG C；
3) test cake prepared in step 2) is put into high temperature furnace, is warming up to 1270 DEG C, kept the temperature 43min, be chilled to room
Temperature is to get sulphur tailing sulphoaluminate cement clinker.Added in clinker 13.6% dihydrate gypsum it is levigate after specific surface area be
378m2/ Kg, at the same the ratio of mud be 0.4 under conditions of form, and standard curing room (temperature be 20 DEG C, relative humidity >=
90%) its mechanical property is tested after maintenance to certain age in.It is illustrated in figure 3 the trend of product compression strength achieved
Figure.
Sulphate aluminium cement of the available properties of product prepared better than 42.5 labels in the market.
Embodiment 4
Sulphur tailing sulphoaluminate cement clinker each raw material component weight fraction ratio provided in this embodiment are as follows: sulphur tailing 9.90
Part, aluminium grey 32.67 parts, 47.53 parts of carbide slag, 9.90 parts of titanium gypsum, basicity factor Cm is 0.96, and aluminium-sulfur ratio P is 2.56.
1) by sulphur tailing, aluminium ash, carbide slag, titanium gypsum separate compiling to 200 mesh hereinafter, spare；
2) each material component is weighed according to raw material proportioning, be mixed evenly, be pressed into mixture using tablet press machine
Test cake, it is spare after dry 10.5h under the conditions of 105 DEG C；
3) test cake prepared in step 2) is put into high temperature furnace, is warming up to 1285 DEG C, kept the temperature 50min, be chilled to room
Temperature is to get sulphur tailing sulphoaluminate cement clinker.Added in clinker 14.7% dihydrate gypsum it is levigate after specific surface area be
381m2/ Kg, at the same the ratio of mud be 0.4 under conditions of form, and standard curing room (temperature be 20 DEG C, relative humidity >=
90%) its mechanical property is tested after maintenance to certain age in.It is illustrated in figure 4 the trend of product compression strength achieved
Figure.Sulphate aluminium cement of the available properties of product prepared better than 42.5 labels in the market.
Embodiment 5
Sulphur tailing sulphoaluminate cement clinker each raw material component weight fraction ratio provided in this embodiment are as follows: sulphur tailing 8.13
Part, aluminium grey 34.96 parts, 48.78 parts of carbide slag, 8.13 parts of titanium gypsum, basicity factor Cm is 0.95, and aluminium-sulfur ratio P is 3.30.
1) by sulphur tailing, aluminium ash, carbide slag, titanium gypsum separate compiling to 200 mesh hereinafter, spare；
2) each material component is weighed according to raw material proportioning, be mixed evenly, be pressed into mixture using tablet press machine
Test cake, it is spare after dry 10.5h under the conditions of 105 DEG C；
3) test cake prepared in step 2) is put into high temperature furnace, is warming up to 1275 DEG C, kept the temperature 47min, be chilled to room
Temperature is to get sulphur tailing sulphoaluminate cement clinker.Added in clinker 15.7% dihydrate gypsum it is levigate after specific surface area be
386m2/ Kg, at the same the ratio of mud be 0.4 under conditions of form, and standard curing room (temperature be 20 DEG C, relative humidity >=
90%) its mechanical property is tested after maintenance to certain age in.It is illustrated in figure 5 the trend of product compression strength achieved
Figure.
Sulphate aluminium cement of the available properties of product prepared better than 42.5 labels in the market.
Comparative example 1
The sulphate aluminium cement of comparative example 1 selects Zhengzhou, henan to build low alkali of the Wen Tecai Science and Technology Ltd. marked as 42.5
Spend sulphate aluminium cement, the cement be with bauxite, lime stone, the natural gypsum after appropriate ingredient is levigate, forged at 1350 DEG C
Being burnt into containing calcium sulphoaluminate and dicalcium silicate is the clinker of main mineral constituent, adds the common levigate rear preparation of proper amount of gypsum
Hydraulic material.Its mechanical property is tested under conditions of the ratio of mud is 0.4.It is illustrated in figure 7 product pressure resistance achieved
The tendency chart of degree.
Comparative example 2
Compared with Example 4, the copper tailing in embodiment 4 is substituted for Pb-Zn tailings, parts by weight identical, other content
It is same as Example 4, it is not repeating herein.Basicity factor Cm is 1.00 after replacement, and aluminium-sulfur ratio P is 2.82, due to basicity factor
It is bigger than normal, it will form a large amount of transitional mineral (such as C 12 A 7), cause the performance of clinker to change, as shown in Figure 7
For the tendency chart of product compression strength achieved.
Comparative example 3
Compared with Example 4, that the copper tailing in embodiment 4 is substituted for tailing, parts by weight is identical, other content with
Embodiment 4 is identical, is not repeating herein.Basicity factor Cm is 0.94 after replacement, and aluminium-sulfur ratio P is 3.22.It is illustrated in figure 8 product
The tendency chart of compression strength achieved.
The properties of prepared product are listed in the table below 1 in above-mentioned each embodiment.
Each embodiment performance indicator inspection result of table 1
To sum up, by comparative example 1~5 and comparative example 1~3 it is found that prepared by technical solution provided by the invention
Sulphoaluminate cement clinker performance it is more preferable than sulphoaluminate cement clinker performance made from Pb-Zn tailings and tailing and former
Various foreign ions in material can improve the burn-ability and mineral active of clinker, improve the mechanical property of clinker, comprehensive utilization
High performance clinker has been produced while solid waste, and there is significant environmental protection and application value.In addition, comparative example 2 and right
After replacing sulphur tailing using Pb-Zn tailings and tailing in ratio 3, the mineral composition in comparative example 2 and comparative example 3 can be than this hair
Mineral composition in bright technical solution is high, but the sulphoaluminate cement clinker of the technical solution of the offer in present invention preparation
Performance is more preferable, and it is more creative that this also demonstrates technical solution of the present invention.
In conclusion the present invention also has the following technical effect that
1) the invention proposes a kind of new ways of sulphur Tailings utilization, using solid waste as raw material, do not need to add
Add any additive, production cost is low, less energy consumption, market and has a extensive future.
2) preparation method of the invention is simple, easy to operate, is able to achieve industrialized production.
3) present invention replaces the sulphur matter and ferriferous raw material of conventional sulphoaluminate cement clinker production using sulphur tailing completely,
Part replaces calcareous, aluminum, siliceous raw material, after grinding to certain fineness, controls cement by basicity factor Cm and sulphur aluminium ratio P
In clinkerC2S and C4It is ripe to prepare sulphate aluminium cement with ingredients such as aluminium ash, carbide slag, titanium gypsums for the formation of AF mineral
Material.The sulphoaluminate cement clinker that the present invention prepares is cooperated using sulphur tailing and titanium gypsum, and by creativeness
Test, show that the 3d compression strength of sulphoaluminate cement clinker prepared by the present invention is up to 46MPa, 7d compression strength and is up to
55MPa, 28d compression strength are up to 60MPa.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Mind and principle within, any modification, equivalent replacement, improvement and so on, accompanying claims protection scope of the present invention it
It is interior.
Claims (9)
1. a kind of using sulphur tailing as the sulphoaluminate cement clinker of raw material, which is characterized in that according to parts by weight, the sulphur aluminic acid
Salt cement clinker includes following component:
Sulphur tailing, 5~20 parts；Aluminium ash, 20~40 parts；Carbide slag, 40~50 parts；Titanium gypsum, 5~20 parts.
2. sulphoaluminate cement clinker as described in claim 1, which is characterized in that according to parts by weight, the aluminium sulfate
Clinker includes following component:
Sulphur tailing, 7~18 parts；Aluminium ash, 25~36 parts；Carbide slag, 40~50 parts；Titanium gypsum, 7~18 parts.
3. sulphoaluminate cement clinker as described in claim 1, which is characterized in that the raw material of the sulphoaluminate cement clinker
The parts by weight of composition will guarantee that basicity factor Cm range is 0.94~0.97；Aluminium-sulfur ratio P range is 1~3.5.
4. sulphoaluminate cement clinker as described in claim 1, which is characterized in that by weight percentage, the sulphur tailing
Including following component: SO3, 30%~40%；SiO2, 20%~30%；Fe2O3, 15%~25%；CaO, 10%~20%；
Al2O3, 1%~10%；Surplus is inevitable impurity.
5. sulphoaluminate cement clinker as described in claim 1, which is characterized in that by weight percentage, the aluminium ash packet
Include following component: Al2O3, 67%~80%；SiO2, 7%~15%；CaO, 5%~20%；Surplus is inevitable impurity.
6. sulphoaluminate cement clinker as described in claim 1, which is characterized in that by weight percentage, the carbide slag
Including following component: CaO, 75%~90%；SiO2, 3%~10%；Al2O3, 3%~10%；SO3, 1%~7%；Surplus is
Inevitable impurity.
7. sulphoaluminate cement clinker as described in claim 1, which is characterized in that by weight percentage, the titanium gypsum
Including following component: SO3, 40%~55%；CaO, 25%~40%；Fe2O3, 5%~20%；Al2O3, 1%~10%；
TiO2, 1%~5%；Surplus is inevitable impurity.
8. sulphoaluminate cement clinker as described in claim 1, which is characterized in that the sulphoaluminate cement clinker addition with
Clinker quality ratio is after 0.07~0.20 dihydrate gypsum is levigate, and specific surface area range is 360m2/ Kg~440m2/Kg。
9. a kind of as described in any one of claims 1 to 8 using sulphur tailing as the preparation side of the sulphoaluminate cement clinker of raw material
Method, which is characterized in that the preparation method includes the following steps:
1) by sulphur tailing, aluminium ash, carbide slag, titanium gypsum separate compiling to 200 mesh hereinafter, spare；
2) each material component is weighed according to raw material proportioning, is mixed evenly, mixture is pressed into test cake using tablet press machine,
It is spare after dry 10~12h under the conditions of 100~105 DEG C；
3) test cake prepared in step 2) is put into high temperature furnace, is warming up to 1260 DEG C~1300 DEG C, keep the temperature 40~55min,
Room temperature is chilled to get sulphur tailing sulphoaluminate cement clinker.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282886A (en) * | 2019-07-30 | 2019-09-27 | 拓南(上海)环保材料有限公司 | A kind of technique and portland cement preparing portland cement using solid waste |
| CN110372233A (en) * | 2019-08-23 | 2019-10-25 | 山东大学 | Sulphoaluminate cement clinker and cement of a kind of titanium gypsum resource utilization and preparation method thereof |
| CN110451823A (en) * | 2019-07-26 | 2019-11-15 | 拓南(上海)环保材料有限公司 | The technique and portland cement of portland cement are prepared using carbide slag and mine tailings |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1030332A1 (en) * | 1982-03-24 | 1983-07-23 | Ленинградский Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Технологический Институт Им.Ленсовета | Quick-hardening cement |
| CN101403042A (en) * | 2008-11-11 | 2009-04-08 | 罗仙平 | Recovery processing method for cyanogen golden mine tailing |
| CN102503196A (en) * | 2011-10-12 | 2012-06-20 | 重庆大学 | Method for preparing cement clinker by using waste concrete |
| CN102515590A (en) * | 2011-11-26 | 2012-06-27 | 山东大学 | Process for producing sulphoaluminate cement by proportioning for direct slurry of red mud |
| CN102584045A (en) * | 2012-02-01 | 2012-07-18 | 天津中材工程研究中心有限公司 | Active belite-sulphate aluminum cement clinker and preparation method for active belite-sulphate aluminum cement clinker |
| JP2012201562A (en) * | 2011-03-25 | 2012-10-22 | Ube Industries Ltd | Cement composition and method for producing the same |
| CN102923978A (en) * | 2012-10-31 | 2013-02-13 | 沈阳航空航天大学 | Method for preparing sulphoaluminate cement raw material by using incineration fly ash and formula of sulphoaluminate cement |
| CN104788032A (en) * | 2015-04-09 | 2015-07-22 | 中国建筑材料科学研究总院 | Belite cement and preparation method thereof |
| CN105060745A (en) * | 2015-08-14 | 2015-11-18 | 盐城工学院 | Belite-sulphoaluminate-ferrous aluminate cement and preparation method thereof |
| CN105645795A (en) * | 2016-02-03 | 2016-06-08 | 中国地质大学（北京） | Sulphate aluminum cement clinker prepared from iron tailings and preparation method thereof |
| CN106866006A (en) * | 2017-03-17 | 2017-06-20 | 山东大学 | Organic wastewater collaboration Industrial Solid Waste prepares the system and method for sulphate aluminium cement |
| CN108314340A (en) * | 2018-04-09 | 2018-07-24 | 河南理工大学 | It is a kind of using tailing as sulphoaluminate cement clinker of raw material and preparation method thereof |
| CN108395178A (en) * | 2018-05-14 | 2018-08-14 | 河南理工大学 | A kind of non-steam-pressing aero-concrete of aluminiferous mine tailing and preparation method thereof |
| CN108516709A (en) * | 2018-04-09 | 2018-09-11 | 河南理工大学 | It is a kind of using Pb-Zn tailings as sulphoaluminate cement clinker of raw material and preparation method thereof |
| CN108675657A (en) * | 2018-05-08 | 2018-10-19 | 中国中材国际工程股份有限公司 | A method of preparing silicate-aluminium sulfate compound system clinker using waste residue |
-
2018
- 2018-10-24 CN CN201811243645.2A patent/CN109320110B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1030332A1 (en) * | 1982-03-24 | 1983-07-23 | Ленинградский Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Технологический Институт Им.Ленсовета | Quick-hardening cement |
| CN101403042A (en) * | 2008-11-11 | 2009-04-08 | 罗仙平 | Recovery processing method for cyanogen golden mine tailing |
| JP2012201562A (en) * | 2011-03-25 | 2012-10-22 | Ube Industries Ltd | Cement composition and method for producing the same |
| CN102503196A (en) * | 2011-10-12 | 2012-06-20 | 重庆大学 | Method for preparing cement clinker by using waste concrete |
| CN102515590A (en) * | 2011-11-26 | 2012-06-27 | 山东大学 | Process for producing sulphoaluminate cement by proportioning for direct slurry of red mud |
| CN102584045A (en) * | 2012-02-01 | 2012-07-18 | 天津中材工程研究中心有限公司 | Active belite-sulphate aluminum cement clinker and preparation method for active belite-sulphate aluminum cement clinker |
| CN102923978A (en) * | 2012-10-31 | 2013-02-13 | 沈阳航空航天大学 | Method for preparing sulphoaluminate cement raw material by using incineration fly ash and formula of sulphoaluminate cement |
| CN104788032A (en) * | 2015-04-09 | 2015-07-22 | 中国建筑材料科学研究总院 | Belite cement and preparation method thereof |
| CN105060745A (en) * | 2015-08-14 | 2015-11-18 | 盐城工学院 | Belite-sulphoaluminate-ferrous aluminate cement and preparation method thereof |
| CN105645795A (en) * | 2016-02-03 | 2016-06-08 | 中国地质大学（北京） | Sulphate aluminum cement clinker prepared from iron tailings and preparation method thereof |
| CN106866006A (en) * | 2017-03-17 | 2017-06-20 | 山东大学 | Organic wastewater collaboration Industrial Solid Waste prepares the system and method for sulphate aluminium cement |
| CN108314340A (en) * | 2018-04-09 | 2018-07-24 | 河南理工大学 | It is a kind of using tailing as sulphoaluminate cement clinker of raw material and preparation method thereof |
| CN108516709A (en) * | 2018-04-09 | 2018-09-11 | 河南理工大学 | It is a kind of using Pb-Zn tailings as sulphoaluminate cement clinker of raw material and preparation method thereof |
| CN108675657A (en) * | 2018-05-08 | 2018-10-19 | 中国中材国际工程股份有限公司 | A method of preparing silicate-aluminium sulfate compound system clinker using waste residue |
| CN108395178A (en) * | 2018-05-14 | 2018-08-14 | 河南理工大学 | A kind of non-steam-pressing aero-concrete of aluminiferous mine tailing and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| LIN YANG, ET AL.: ""Utilization of phosphate fertilizer industry waste for belite-ferroaluminate cement production"", 《CONSTRUCTION AND BUILDING MATERIALS》 * |
| WANG WENLONG, ET AL: ""Research and application of preparation for sulphur aluminate based on industrial solid waste completely as raw material"", 《CEMENT ENGINEERING》 * |
| 彭凤翔: ""川南硫铁矿综合利用工艺流程研究"", 《四川冶金》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110451823A (en) * | 2019-07-26 | 2019-11-15 | 拓南(上海)环保材料有限公司 | The technique and portland cement of portland cement are prepared using carbide slag and mine tailings |
| CN110451823B (en) * | 2019-07-26 | 2022-02-18 | 三明微晶新材料科技有限公司 | Process for preparing portland cement by using carbide slag and tailing slag and portland cement |
| CN110282886A (en) * | 2019-07-30 | 2019-09-27 | 拓南(上海)环保材料有限公司 | A kind of technique and portland cement preparing portland cement using solid waste |
| CN113860765A (en) * | 2019-07-30 | 2021-12-31 | 三明微晶新材料科技有限公司 | Method for preparing portland cement by utilizing solid waste |
| CN110372233A (en) * | 2019-08-23 | 2019-10-25 | 山东大学 | Sulphoaluminate cement clinker and cement of a kind of titanium gypsum resource utilization and preparation method thereof |
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